When the hip-hop mogul and part-time actor announced to his 8.7 million Twitter followers Wednesday that he would be a series regular on the next season of Downton Abbey – his "favorite show" – it seemed ridiculous.

But then again, producers of the smash-hit PBS series recently announced that they are trying to diversify, and Diddy has done serious roles, including that of the son, Walter Lee Younger, in the 2004 Broadway revival of A Raisin in the Sun.

So, maybe?

PBS and Masterpiece quickly shot down the rumor when they told The New York Times in an email: "So funny but it’s just not true. Really. It’s not true."

But in the end, there was a grain of truth to Diddy's announcement when he later posted a Funny or Die video that jokingly inserted himself into the show as Lord Wolcott.

At the beginning of the video, Diddy introduces the clips of himself on the show and proclaims that Downtown Abbey is his favorite show of all time. (To see the "Downton Diddy" video, click here, but be forewarned it contains explicit language.)

Later, as the made-up Lord Wolcott, the new owner of Downton Abbey, he chides the Dowager Countess, played by Maggie Smith, as being "a little b––y" after she delivers one of her signature put-downs. He even throws the first ever Downton Abbey White Party, a humorous nod to his real-life annual Hamptons bash.

"Now that was some riveting period drama," Diddy says at the end of the video.